PTR Unholy Changes

First off this isn't to complain about how I am being nerfed into the ground, but I've seen so many nerfs across so many different PTR changes that it has become difficult to keep track of them.  Also some notes on how I've been seeing changes in my performance.

The Changes that Impact Unholy DKs
Death Coil damage has been reduced by roughly 10%.
Dark Transformation now increases pet damage by 80%, down from 100%
Rage of Rivendare now increases strike damage by 12/24/36%, down from 15/30/45%.
Shadow Infusion now increases pet damage by 8% per stack, down from 10%.
Necrotic Strike's absorption effect is now reduced by the target's resilience. In addition, its debuff duration has been reduced to 10 seconds, down from 15.
Necrotic Stike casting time increase effect now lasts 10 sec, down from 15 sec.
Necrotic Strike's absorption effect is now reduced by the target's resilience.
Sudden Doom is now triggered only from main-hand auto attacks, and is normalized according to weapon speed rather than having a fixed percentage chance.
Virulence has been redesigned. It no longer increases chance to hit with spells. It now grants 10/20/30% additional disease damage.
Unholy Might (passive) has been reduced to a 5% Strength increase, down from 10%.

Blightcaller (Mastery) has been redesigned and renamed Dreadblade. It increases all Shadow damage by 2.5% per point of mastery.
Death's Advance (new talent): While both Unholy Runes are depleted, movement-impairing effects cannot reduce the death knight below 75/100% of normal movement speed.
Scourge Stike now deals an additional 18% Physical damage done as Shadow Damage for each disease on your target. Up from 12%.

Reactions so far...
From my time on the public test realm I noticed my DPS hadn't decreased by a lot.  It's generally 1k less when I'm really focused and 6k less when I am screwing up.  On live I can screw up and still hit 10k, my rotation is now less forgiving because each hit matters more, I'm not getting the death coil spam and my pet to make up for it as much.

In PvP I am now useless.  I make healers a little sad but I don't completely wreck their life like I used to.

I found reforging from haste to mastery increased my DPS by about 500 on average.  This is small and made my rotation feel really slow and uncomfortable so I will probably stick with haste anyway, but it makes me wonder what all this haste melee plate is for now.  I don't know the other classes very well but I've been unopposed in PUGs when I explain I'm unholy DK when I need on them.